Hi,

What’s the speed between source, proxy, and repository, and the final storage?

You’ve not stated if you’re backing up VMs or agents so I’m making an assumption you’re backing up VMs.

In which case you’ve got your source data (VM), that’s being read by the proxy component, which is then passed to the repository component, which will be writing to the storage. Depending on your topology this can impact performance if data keeps traversing a remote Link.

I’d strongly recommend that whichever repository is using iSCSI is in the same site as the storage.

Lets start here by understanding the backup topology more and also the available bandwidth.

hello ​@Olly 
can you clarify more about the backup infrastructure setup,?
the type of network and connectivity? 1GB 10 GB?
Vlan segmentation?
infrastructure separated by a firewall?
 the type of NAS?
do you useISCSI SMB/CIFS or NFS?
test file copy speed: If you manually copy a large file from the vbr server to the ISCSI remote volume , how fast is the transfer?
Which transport mode do you use?
Automatic or NDB?
Is Jumbo Frames enabled on both ends and consistent?
What's your ping latency to the NAS?

NAS repositories | Veeam Backup & Replication Best Practice Guide

Hi

Thanks for taking the time to provide such a rapid and extensive reply.

Some of your terminology is beyone my understanding but this is set up to back up a number of windows based directories and files to an offsite location from a virtual machine which resides on site.

I am looking at the backup via the Veeam Backup and Replication GUI and this is where I can see the issue occurring.

The only remote device is the external NAS and this will be governed by our internet speed which is slow at only 5mb/s write speed but utilising all of this bandwidth could speed things up by 5 times. Everything else is on site and connected via gigabit LAN.

Hi ​@Olly 
so are you using the NAS backup feature with the “Unstructure data Backup” feature? ( the WAN accelerator is not supported)

in this scenario i recommend you to :

• Deploy one WAN accellerator server onsite and one in the remote location.
• Create a copy job of the VM Windows fileserver to in remote NAS repository.
• So as to compress the traffic and reduce the transfer time from one location to the other. Accelerated WAN is utlized for connections

https://community.veeam.com/blogs-and-podcasts-57/wan-accellerator-sizing-wan-low-bandwidth-mode-vs-wan-high-bandwidth-mode-4093 

https://bp.veeam.com/vbr/3_Build_structures/B_Veeam_Components/B_wan_accelerators/Wan_Accelerators.html 

https://bp.veeam.com/vbr/2_Design_Structures/D_Veeam_Components/D_Wan_accelerator/WAN_Accelerator.html 

regards

Ok thanks to all for the help. I will investigate more some of the suggestions and things to look at.

keep us updated